Battery Cell Balancing Process
First, we level all the modules to a common state of charge (the resetting process). After we reset them, we subject the modules to an automated CBP with the charging currents tapering down as they approach the end-of-charge voltage.
The cell balancing process (CBP), also called "reconditioning," is a five-step process. We:
Remove the high-voltage cable
Connect the modules in parallel to a charge-discharge system
Quickly identify and switch out high-resistance modules
Subject the modules to deep, split-current cycling (the CBP)
Cell balancing must occur with the modules in parallel because we cannot control individual module voltages when they are connected in a series.